An Australian physicist has found a basic error in the definition of the word 'siphon', which may have existed in dictionaries and text books around the world for ...

It is one of the most exquisite views we have ever had of the Earth. This colourful new map traces the subtle but all pervasive influence the pull of gravity has across the globe. Known as a geoid, it ...

Gravity is one of the four fundamental forces of nature, which means it’s not derived from anything else – it just is. At least, that's according to our presently accepted theories. But this may be ...

The idea is still new and requires a lot of assumptions in its calculations to make it work. Over the years, experimental results have been mixed. When you purchase through links on our site, we may ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. These questions were answered by the International Astronomical Union (IAU). They pertain to a ...